Weight 155 g (grams)

Information about the weight of the device in different 0.34 lbs (pounds) measurement units. 5.47 oz (ounces)

Volume Estimated volume of the device, calculated from the 81.12 cm³ (cubic centimeters) dimensions provided by the manufacturer. Applies for 4.93 in³ (cubic inches) devices in the form of a rectangular parallelepiped.

Black Silver Colors Gold Information about the colors, in which the device is Blue available in the market. Gray Pink Red

Body materials Glass

Materials used in the fabrication of the device's body. Aluminium alloy

Certi cation Information about the standards, in which the device is IP68 certi ed.

SIM card The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card type

Information about the type and size (form factor) of the Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) SIM card used in the device.

Number of SIM cards

Information about the number of SIM cards, supported by 1 the device.

Features Information about some speci c features related to the Dual SIM optional (A variant of the model with two SIM card slots is available) SIM card(s) of the device.

Networks A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSM GSM (Global System for Mobile Communications) was GSM 850 MHz developed to replace the analog cellular network (1G), GSM 900 MHz therefore it is referred to as a 2G mobile network. It has GSM 1800 MHz been improved with the addition of General Packet Radio GSM 1900 MHz Services (GPRS) and later via the Enhanced Data rates for GSM Evolution (EDGE) technology.

UMTS UMTS 850 MHz UMTS stands for Universal Mobile Telecommunications System. Based on the GSM standard, it is deemed as a 3G UMTS 900 MHz mobile network standard. It has been developed by the UMTS 1700/2100 MHz 3GPP and its major advantage is the provision of greater UMTS 1900 MHz bandwidth and spectral e ciency, due to the W-CDMA UMTS 2100 MHz technology.

Operating system Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)

Android 7.0 Nougat Information about the operating system used by the Android 8.0 Oreo device as well as its version.

User interface (UI)

Name and version of the user interface (UI) used by the Experience 8.1 operating system (OS).

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoC The SoC integrates different hardware components such Qualcomm Snapdragon 835 MSM8998 as the CPU, GPU, memory, peripherals, interfaces, etc., as well as software for their functioning.

Process technology Information about the process technology used in manufacturing the chip. The value in nanometers 10 nm (nanometers) represents half the distance between elements that make up the CPU.

CPU CPU is the Central Processing Unit or the processor of a 4x 2.35 GHz Kryo, 4x 1.9 GHz Kryo mobile device. Its main function is to interpret and execute instructions contained in software applications.

CPU bits The CPU bits are determined by the bit-size of the processor registers, address buses and data buses. 64-bit 64 bit CPUs provide better performance than 32-bit ones, which on their part perform better than 16-bit processors.

Instruction set The instruction set architecture (ISA) is a set of commands used by the software to manage the CPU's ARMv8-A work. Information about the set of instructions the processor can execute.

CPU cores A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi- 8 core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel.

CPU frequency The frequency of the processor describes its clock rate in 2350 MHz (megahertz) cycles per second. It is measured in Megahertz (MHz) or Gigahertz (GHz).

GPU GPU is a graphical processing unit, which handles computation for 2D/3D graphics applications. In mobile Qualcomm Adreno 540 devices GPU is usually utilized by games, UI, video playback, etc. GPU can also perform computation in applications traditionally handled by the CPU.

GPU frequency The frequency is the clock rate of the graphic processor 710 MHz (megahertz) (GPU), which is measured in Megahertz (MHz) or Gigahertz (GHz).

RAM capacity RAM (Random-Access Memory) is used by the operating 4 GB (gigabytes) system and all installed applications. Data in the RAM is lost after the device is turned off or restarted.

RAM type LPDDR4X Information about the type of RAM used by the device.

RAM channels Information about the number of RAM channels integrated Double channel in the SoC. More channels mean higher data transfer rates.

Width 2.54 in (inches)

Height 5.22 in (inches)

Aspect ratio The ratio between the long and the short side of the 2.056:1 display

Resolution The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the 1440 x 2960 pixels resolution is, the greater the detail of the displayed content.

Pixel density Information about the number of pixels per centimeter 568 ppi (pixels per inch) (ppcm) or per inch (ppi) of the display. The higher the pixel 223 ppcm (pixels per centimeter) density, the more detailed and clearer is the information displayed on the screen.

Color depth The color depth of the display is also known as bit depth. 24 bit It shows the number of bits used for the color 16777216 colors components of one pixel. Information about the maximum number of colors the screen can display.

Display area The estimated percentage of the screen area from the 84.47 % (percent) device's front area.

Other features Capacitive

Information about other functions and features of the Multi-touch display. Scratch resistant

Corning Gorilla Glass 5

Sensors Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

Proximity Light Sensors Accelerometer Compass Sensors vary in type and purpose. They increase the Gyroscope overall functionality of the device, in which they are Barometer integrated. Fingerprint Hall Heart rate

Fingerprint sensor model - Synaptics Namsan

Primary camera The primary camera of the mobile device is usually placed at its back and is used for taking photos and recording videos.

Sensor model Information about the manufacturer and the model of the Sony IMX333 Exmor RS image sensor used by the camera of the device.

Sensor type Digital cameras use image sensors for taking photos. The sensor characteristics are some of the main factors CMOS (complementary metal-oxide semiconductor) determining the quality of the camera integrated in the mobile device.

Focal length Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. 4.2 mm (millimeters) A focal length, which results in the same eld of view on a full-frame (35 mm) camera, is also provided.

Flash type Cameras of mobile devices use mainly a LED or a Xenon ash. The LED ash has a softer burst of light and in Dual LED contrast to the much brighter Xenon ash, is used for recording videos as well.

Image resolution One of the main characteristics of the cameras of mobile 4032 x 3024 pixels devices is their resolution, which shows the number of 12.19 MP (megapixels) pixels on the horizontal and vertical dimensions of the image.

Video resolution 3840 x 2160 pixels Information about the maximum resolution available for 8.29 MP (megapixels) shooting a video with the device.

Video FPS Information about the maximum number of frames per second (fps), supported by the device while recording a 30 fps (frames per second) video at maximum resolution. Some of the main standard frame rates for recording and playing video are 24p, 25p, 30p, 60p.

Available also with Samsung S5K2L2 (ISOCELL)

Secondary camera Secondary cameras are placed above the screen of the device and are usually used for video calls, gesture recognition, etc.

Sensor model Information about the manufacturer and the model of the Sony IMX320 Exmor RS image sensor used by the camera of the device.

Sensor type Digital cameras use image sensors for taking photos. The sensor characteristics are some of the main factors CMOS (complementary metal-oxide semiconductor) determining the quality of the camera integrated in the mobile device.

Aperture Aperture (f-stop number) indicates the size of the lens diaphragm opening, which controls the amount of light f/1.7 reaching the image sensor. The lower the f-stop number, the larger the diaphragm opening is.

Focal length 2.95 mm (millimeters)

Focal length is the distance in millimeters from the focal

point of the image sensor to the optical center of the lens. A focal length, which results in the same eld of view on a full-frame (35 mm) camera, is also provided.

Image resolution Information about the maximum image resolution of the 3264 x 2448 pixels secondary camera. Often, the resolution of the secondary 7.99 MP (megapixels) camera is lower than the one of the primary camera.

Video resolution 2560 x 1440 pixels Information about the maximum resolution available for 3.69 MP (megapixels) shooting a video by the secondary camera.

Video FPS Information about the maximum number of frames per 30 fps (frames per second) second (fps), supported by the secondary camera while recording a video at maximum resolution.

Available also with Samsung S5K3H1

Audio Information about the type of speakers and the audio technologies supported by the device.

Speaker The loudspeaker is a device, which reproduces various Loudspeaker sounds such as ring tones, alarms, music, voice calls, etc. Earpiece Information about the type of speakers the device uses.

Qualcomm WCD9341 DAC

192 kHz / 24-bit

Radio The radio in a mobile device is a built-in FM radio receiver.

Radio Information whether the device has an FM radio receiver Yes or not.

Tracking/Positioning Information about the positioning and navigation technologies supported by the device.

Tracking/Positioning The tracking/positioning service is provided by various satellite navigation systems, which track the autonomous geo-spatial positioning of the device that supports them. GPS The most common satellite navigation systems are the A-GPS GPS and the GLONASS. There are also non-satellite GLONASS technologies for locating mobile devices such as the Enhanced Observed Time Difference, Enhanced 911, GSM Cell ID.

Wi-Fi Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

802.11a (IEEE 802.11a-1999)

Wi-Fi 802.11b (IEEE 802.11b-1999) Wi-Fi communication between devices is realized via the 802.11g (IEEE 802.11g-2003) IEEE 802.11 standards. Some devices have the possibility 802.11n (IEEE 802.11n-2009) to serve as Wi-Fi Hotspots by providing internet access for 802.11n 5GHz other nearby devices. Wi-Fi Direct (Wi-Fi P2P) is another 802.11ac (IEEE 802.11ac) useful standard that allows devices to communicate with each other without the need for wireless access point Dual band (WAP). Wi-Fi Hotspot Wi-Fi Direct

USB The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector type There are several USB connector types: the Standard one, USB Type-C the Mini and Micro connectors, On-The-Go connectors, etc. Type of the USB connector used by the device.

Version There are several versions of the Universal Serial Bus (USB) standard: USB 1.0 (1996), the USB 2.0 (2000), the 3.1 USB 3.0 (2008), etc. With each following version the rate of data transfer is increased.

Features Charging Тhe USB interface in mobile devices may be used for Mass storage different purposes such as battery charging, using the On-The-Go device as a mass storage, host, etc.

Headphone jack The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Battery The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity The capacity of a battery shows the maximum charge, 3000 mAh (milliampere-hours) which it can store, measured in mili-Ampere hours.

Type The battery type is determined by its structure and more speci cally, by the chemicals used in it. There are different Li-Polymer battery types and some of the most commonly used in mobile devices are the lithium-ion (Li-Ion) and the lithium- ion polymer battery (Li-Polymer).

2G talk time 29 h (hours) 2G talk time is the time period a battery charge will last, if 1740 min (minutes) one is constantly talking on the phone in a 2G cellular 1.2 days network.

3G talk time 29 h (hours) 3G talk time is the time period a battery charge will last, if 1740 min (minutes) one is constantly talking on the phone in a 3G cellular 1.2 days network.

Head SAR (USA) 0.24 W/kg (watts per kilogram)

This SAR rating shows the maximum level of exposure to

electromagnetic radiation taken when the device is placed next to the ear. The applicable limit for the US is 1.6 W/kg per 1 g of tissue. In the US the FCC tests and sets the SAR limits for all mobile devices, which are controlled by the CTIA.

Body SAR (USA)

The SAR body rating shows the maximum level of exposure to electromagnetic radiation when the device is positioned against the body at the hip. The highest SAR 0.48 W/kg (watts per kilogram) value of mobile devices allowed in the US is set to 1.6 W/kg per 1 g of tissue. It is speci ed by the FCC and the CTIA follows whether the mobile devices comply with this standard.

Additional features Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

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